Personally, Morgans are not my dish. As Kristy said, the breed standard is practically pony sized, and that just doesn't work for me. I don't feel comfortable riding a 14'2 hh horse on a 2 hour trail ride.. let alone a 14'2 hh horse with a petite build and refined features. If they were stockier and more bulldog-y i'd probably like them more.
Plus, the morgans I had most of my first hand experience with were crazy show horses.. and as we know (from the QH world, Arabian world, and TWH world) the show horses do NOT reflect the breeding standard.. in my opinion. These morgans were flighty, insane, and absolutely crazy under saddle. It did NOT look like a pleasurable ride, and you couldnt pay me to ride them.
The first morgan I ever met was the best morgan I ever met. He was what the breed was supposed to be (i imagine). He was only 14 hh, built like a arabian/qh cross (if I had to put my finger on it) and was very reliable and safe.
But, then again, a horse is what the owner makes it. I don't really believe that breeds have certain inate personality traits just because of their breed. Like saying that all Quarter Horses are smart and bomb proof. Well.. ALL horses are smart... and no horse is born bomb proof... its all in how the owner/handler/trainer raises them.
I digress :P
All in all I don't particularly care for morgans, but I don't dislike them at the same time. I'd never actively pursue one to purchase, but if I was looking at horses for sale and found a taller, calm morgan, i'd probably buy it.